Overview
Delosperma exspersum (N.E.Br.) L.Bolus var. decumbens L.Bolus is a low-growing, succulent plant that belongs to the family Aizoaceae. It is native to South Africa and is commonly known by the names of Yellow Ice Plant, Hardy Yellow Ice Plant, and Yellow Trailer.
General Appearance
Delosperma exspersum (N.E.Br.) L.Bolus var. decumbens L.Bolus grows up to 3-4 inches tall and up to 24 inches wide, with trailing branches that create a tight mat of foliage on the ground. The leaves are fleshy, green, and wedge-shaped, and can vary in color from green to grayish-green. The flowers emerge in late spring or early summer and bloom for several weeks. The daisy-like flowers can vary in color from pale yellow to bright yellow, and are about one inch in diameter. The flowers typically close at night and on cloudy days and can cause the plant to take on a quilt-like appearance.
Uses
As a groundcover plant, Delosperma exspersum (N.E.Br.) L.Bolus var. decumbens L.Bolus is perfect for rock gardens, container plantings, hanging baskets, and as a bedding plant. It is an excellent choice for areas with poor soil, as it is drought-tolerant and does not require much water. Delosperma exspersum (N.E.Br.) L.Bolus var. decumbens L.Bolus will provide a beautiful accent to any open or barren space in the landscape. It also attracts pollinators such as bees and butterflies, making it a useful plant for a wildlife garden as well.
Care
Delosperma exspersum (N.E.Br.) L.Bolus var. decumbens L.Bolus requires well-drained soil and minimal watering. It is highly drought-tolerant and low-maintenance and will thrive in hot, dry conditions. It is hardy to USDA hardiness zones 5-9 and can tolerate temperatures as low as -10°F. Pruning may be needed to maintain its shape and to remove any dead or damaged branches. Fertilization is optional but should be done sparingly using a low-nitrogen fertilizer in the early spring.
Light Requirements
The Delosperma exspersum (N.E.Br.) L.Bolus var. decumbens L.Bolus plant requires a considerable amount of sunlight to grow properly. They need full sun exposure to thrive and can even tolerate exposure to hot and dry climates. This plant is well-suited for regions that receive plenty of bright light throughout the year.
Temperature Requirements
The Delosperma exspersum (N.E.Br.) L.Bolus var. decumbens L.Bolus plant thrives in a wide temperature range and can tolerate both extreme hot and cold conditions. This plant is suitable for regions with hot summers and chilly winters. In general, this plant can tolerate temperatures ranging from 25°C to 110°C, making it a robust and adaptable plant for many different environments.
Soil Requirements
The Delosperma exspersum (N.E.Br.) L.Bolus var. decumbens L.Bolus plant prefers well-draining soil with a reasonably high organic matter content. Soil with clay content should be avoided as it can lead to waterlogging and root rot. Sandier soil with a pH range of 6.5 to 7.5 is preferred. The plant should be watered thoroughly, but care should be taken not to overwater as it can lead to root rot.
Cultivation methods
Delosperma exspersum (N.E.Br.) L.Bolus var. decumbens L.Bolus, commonly known as Purple Vygie, is a succulent native to South Africa. This plant prefers a sunny location with well-draining soil mixtures consisting of equal parts of sand, perlite, and potting soil.
Although a cold-hardy plant, it is best grown in a greenhouse in cooler climates. It is also easier to control the environment's temperature and humidity in a greenhouse, ensuring optimal growing conditions.
Watering needs
Delosperma exspersum var. decumbens should be watered lightly and infrequently. Allow the soil to dry completely before watering again. In colder months, reduce watering to once every two to three weeks. In warmer months, water once every week. Ensure that the plant is not left sitting in water to prevent root rot.
Fertilization
Delosperma exspersum var. decumbens should be fed with a balanced fertilizer once in the growing season, preferably in the spring. The fertilizer should contain equal parts of nitrogen, phosphorus and potassium (NPK).
Ensure that the plant is not over-fertilized, as this can lead to salt accumulation, root burn, and damage to the plant's leaves and stems.
Pruning
Delosperma exspersum var. decumbens requires minimal pruning. Deadheading faded flowers is recommended as it encourages the plant to produce more buds and flowers.
Trimming back the plant is not necessary unless the plant has become leggy or overgrown. To do this, cut back the stems at the desired height, taking care not to harm the leaves or remaining stems.
Propagation of Delosperma exspersum (N.E.Br.) L.Bolus var. decumbens L.Bolus
Delosperma exspersum (N.E.Br.) L.Bolus var. decumbens L.Bolus can be propagated via various methods:
Seeds
Seeds should be sowed in autumn in well-draining soil or seed compost, at a depth of 1-2 cm. Cover loosely with a layer of compost, and maintain a temperature of around 20°C. Germination should take place in a few weeks.
Cuttings
Cuttings from July to September are the most successful. Cuttings should be taken from the tips of shoots, taken with a clean, sharp knife, making sure that each cutting is around 10cm in length. Remove any lower leaves and plant into well-draining soil. Provide a good level of humidity and keep soil moist until roots have developed.
Division
Mature plants may be divided in spring. Separate the plant gently to ensure that roots are not damaged. Plant each section into well-draining soil or compost, and water thoroughly.
Disease Management
Delosperma exspersum var. decumbens is susceptible to several diseases that can affect its overall health and appearance. The most common diseases that this plant might encounter include root rot, leaf spot, stem rot, and powdery mildew. Root rot occurs due to overwatering and can be prevented by providing well-draining soil and limiting watering. Leaf spot and stem rot are caused by a fungus and can be managed by removing and destroying infected plant parts and using a fungicide. Powdery mildew is a fungal disease that can be treated by using a fungicide and increasing air circulation around the plant.
Pest Management
In addition to diseases, Delosperma exspersum var. decumbens can also attract pests that can damage or kill the plant. The most common pests that might affect this plant include whiteflies, aphids, and spider mites. Whiteflies and aphids are small insects that can suck the sap from the plant and cause distortions and yellowing. Spider mites are tiny arachnids that create webs and suck plant fluids. These pests can be managed by using insecticidal soap, neem oil, or horticultural oil. However, it's crucial to avoid using these products during hot and sunny days as they might burn the plant leaves. Regularly inspecting the plant and removing any damaged or infested parts can also help prevent pest infestations.
